embassy-executor: explicitly return impl Future in task inner task

2 files changed, 11 insertions, 2 deletions

diff --git a/embassy-executor/tests/test.rs b/embassy-executor/tests/test.rs
index c1e7ec5d7..b84d3785a 100644
--- a/embassy-executor/tests/test.rs
+++ b/embassy-executor/tests/test.rs
@@ -7,7 +7,7 @@ use std::sync::{Arc, Mutex};
 use std::task::Poll;
 
 use embassy_executor::raw::Executor;
-use embassy_executor::task;
+use embassy_executor::{task, Spawner};
 
 #[export_name = "__pender"]
 fn __pender(context: *mut ()) {
@@ -317,3 +317,12 @@ fn executor_task_cfg_args() {
         let (_, _, _) = (a, b, c);
     }
 }
+
+#[test]
+fn recursive_task() {
+    #[embassy_executor::task(pool_size = 2)]
+    async fn task1() {
+        let spawner = unsafe { Spawner::for_current_executor().await };
+        spawner.spawn(task1());
+    }
+}
diff --git a/embassy-executor/tests/ui/bad_return_impl_future_nightly.stderr b/embassy-executor/tests/ui/bad_return_impl_future_nightly.stderr
index 73ceb989d..3c3c9503b 100644
--- a/embassy-executor/tests/ui/bad_return_impl_future_nightly.stderr
+++ b/embassy-executor/tests/ui/bad_return_impl_future_nightly.stderr
@@ -7,4 +7,4 @@ error[E0277]: task futures must resolve to `()` or `!`
   = note: use `async fn` or change the return type to `impl Future<Output = ()>`
   = help: the following other types implement trait `TaskReturnValue`:
             ()
-            <fn() -> ! as _export::HasOutput>::Output
+            <fn() -> ! as HasOutput>::Output